Nutritive value of mediterranean shrubs
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Tarih
2012Yazar
Kökten, Kağan
Kaplan, Mahmut
Hatipoğlu, Rüştü
Saruhan, Veysel
Çınar, Selahattin
Üst veri
Tüm öğe kaydını gösterÖzet
Nutritive values of the leaves of Mediterranean shrubs Quercus coccifera, Calicotome villosa, Rhamnus oleoides ssp.
graecus, Pistacia terebinthus, Paliurus spina-christi and Phillyrea latifolia, and Leuceana leucocephala, an introduced
species were studied. These shrubs were hand harvested from three plots established in the experimental field at before
flowering, flowering and bear fruit stages. The nutritive values were evaluated in terms of the chemical composition, dry
matter (DM), organic matter (OM), relative feed value (RFV), dry matter intake (DMI) as well as digestible dry matter
(DDM).Maturity had a significant effect on the chemical composition, DM, OM and estimated parameters (DDM, DMI
and RFV) of the leaves of the shrub species. Neutral detergent fiber (NDF), acid detergent fiber (ADF) and condensed
tannin (CT) contents increased with increasing maturity whereas the crude protein decreased. DM and estimated
parameters also decreased with increasing maturity. CP, ADF, NDF, Ash and CT contents ranged from 6.4 to 33.3%,
from 6.9 to 39.1%, from 10.1 to 50.5%, from 2.9 to 6.8% and from 0.7 to 15.8%, respectively. The OM and DM ranged
from 93.2 to 97.1% and from 28.5 to 70.8%, respectively. The digestibility DM, DM intake and RFV ranged from 58.4
to 83.5%, from 2.4 to 11.9% and from 107.7 to 769.3, respectively ADF, NDF and condensed tannin contents of the
leaves of the shrub species harvested at bear fruit stage were significantly higher than those harvested at before flowering
and flowering stages, while CP contents and estimated parameters of the leaves of the shrub species harvested at
flowering stage were significantly higher than those harvested at before flowering and bear fruit stages. The biplot
analysis indicated negative correlation of CP content with OM and DM, whereas it is positively correlated with CT and
ash contents. On the other hand, ADF was positively correlated with NDF, whereas it is negatively correlated with
estimated parameters. The shrub species harvested at the proper stage of maturity offers considerable potential as high
quality forage for ruminants during critical period in the semi arid and arid regions.
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